Air conditioner



FIG. 1 is the front perspective view of an air conditioner showing our new design;

FIG. 2 is the front view thereof;

FIG. 3 is the rear view thereof;

FIG. 4 is the left-side view thereof;

FIG. 5 is the right-side view thereof;

FIG. 6 is the top view thereof;

FIG. 7 is the bottom view thereof;

FIG. 8 is the rear perspective view thereof; and,

FIG. 9 is the enlarged view of the encircled portion in FIG. 2.

The broken lines illustrating portions of the air conditioner form no part of the claimed design. The dot-dash broken lines encircling portions in FIG. 2 that are illustrated in enlargements form no part of the claimed design. 

CLAIM The ornamental design for an air conditioner, as shown and described. 